peters



2 Sheets-Sheet 1.

C. M. 8L R. M. WOOD. Oar Axle Box.

No. 234,159. Patented Nov. 9,1880.

N. FErERS. PHOY0-L|TNOGRAFWER wAsmNGTON. D c.

2 Sheets-Sheet 2.

C. M. & R. M. WOOD.

Oar Axle Box.

No. 234,159. Patented Nov. 9,1880.

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A #Zw-5M l N4 PETERS. PHOTD-LITHOGRAPHER. WASHINGTON. D CA UNITED STATES PATENT OFFICE.

CALVIN M. WOOD AND ROLDO M. WOOD, OF HEALDSBURG, CALIFORNIA.

CAR-AXLE BOX.

SPECIFICATION forming part of Letters Patent No. 234,159, dated November 9, 1880.

Application led February 12, 1880.

To alt whom t may concern:

Be it known that we, CALVIN M. WOOD and ROLDO M. WOOD, of Healdsburg, county of Sonoma, and State of California, have invented an Improved Car-Axle Box and Journal; and we hereby declare the following to be a full, clear, and exact description thereof.

Our invention relates to certain improvements in car-axle boxes; and it consists in the employment, in such a box, of anti-friction rollers, through which the weight of the car is supported upon the car-axle journal, the bearings for the axles of lthese supplemental rollers being supported radially from the center of the main axle.

It further consists in providing for such an axle an elastic thrust-bearing which will relieve the housings of the side wear and strain from the lateral movements of the cars when in motion.

The lower housing is so iitted to the upper one that it may be removed by simply taking out two bolts.

In the accompanying drawings, Figure l is a perspective view of our improved box. Fig. 2 is a vertical sectional view of the cushion-box transverse to the axle. Fig. 3 is a sectional view on line .r x of Fig. 2; and Fig. 4 is a side elevation, partly in section, showing the relative positions of the axle and bearing-rollers.

B is a car-axle, and D is the upper part of the box or housing, which is secured to the car-frame. Within this housing two rollers, A, are mounted upon axles C, which extend across and rest in boxes E upon each side. The rollers are of such a length as to entirely fill the full breadth of the space within the housing, and thus give a broad bearing for the axle.

The boxes E of the axles C are formed with the housing D projecting from the sides far enough to give a proper bearing for the axles, and they are so placed that a line drawn radially from the center of the axle B through the center of the axle C will have one half the box on each side of it. This provides an even bearing to resist the angular pressure upon these axles, and the boxes will thus wear evenly.

F is a semi-cylindrical extension projecting in line with the axle B, and fitted to receive a rubber or other elastic block or cylinder, H. This elastic block has a curved steel disk fixed to it, forming a facing against which the end of the shaft rests, and which receives its thrust when there is any side movement. This prevents the car-wheels from being forced against the housings or boxes so as to wear them.

The lower housing or cap, K, has a corresponding extension, F, which completes the cylinder within which the elastic block lies when the two parts are secured together. Pillars L are cast with this lower housing, and the caps Gr of the boxes E are formed upon them, having end disks, M, whichjust fit over the open ends of the boxes E when in place, and thus close these boxes.

The housing K has lugs I cast upon it, corresponding with similar lugs upon the upper part, D, and a single bolt through these lugs secures the cap in place.

The pillars L serve as guides, so that the cap must tit exactly to its place.

The caps G are adapted to hold the lubricant and packing for the axles C, while the lower part of the housing K holds the lubricant for the axle B.

This device is applicable for all kinds of cars, locomotives, Sac., and by its use the friction of the journals is greatly reduced.

Having thus described our invention, we do not claim, broadly, the employment of antifriction rollers as shaft or axle bearings; but

What we do claim as new, and desire to secure by Letters Patent, is-

l. In a car-axle box having anti-friction rollers which turn upon the main axle, the rollers A, of a length equal to the width of the box and having their axles supported in the bearings E, as shown, in combination with the lower housing or cap, K, having the pillars L, the oil-holding caps Gr of the boxes E, and the end plates or disks, M, formed in one piece and adapted to close the box, or to be removed for the purpose of repacking without disturbing the bearing, substantially as herein described.

2. The car-axle box consisting of the hous- IOC) ing I) K,unitod as shown, :1nd having the anti-friction rolhrs A turning' upon thv nxlo B, and having their nxhs snppoltvd in th(l bearings E, in combination with the elastic 5 steel-faced thrust-bodrio;r ll und its continun :is case I", snbstantialiv :1s and for tho pin'- 14 se herein described.

i i i i i i In witness whereof we have hereunto set our hands.

CALVIN MAPLES WOOD. ROLDO MORTIMER WOOD. Witnesses S. B. Woon, W. B. REYNOLDS. 

